126 lines
4.4 KiB
PHP
126 lines
4.4 KiB
PHP
<?php
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/*
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+--------------------------------------------------------------------+
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| CiviCRM version 4.7 |
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+--------------------------------------------------------------------+
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| Copyright CiviCRM LLC (c) 2004-2017 |
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+--------------------------------------------------------------------+
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| This file is a part of CiviCRM. |
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| CiviCRM is free software; you can copy, modify, and distribute it |
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| under the terms of the GNU Affero General Public License |
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| Version 3, 19 November 2007 and the CiviCRM Licensing Exception. |
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| CiviCRM is distributed in the hope that it will be useful, but |
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| WITHOUT ANY WARRANTY; without even the implied warranty of |
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| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
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| See the GNU Affero General Public License for more details. |
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| You should have received a copy of the GNU Affero General Public |
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| License and the CiviCRM Licensing Exception along |
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| with this program; if not, contact CiviCRM LLC |
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| at info[AT]civicrm[DOT]org. If you have questions about the |
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| GNU Affero General Public License or the licensing of CiviCRM, |
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| see the CiviCRM license FAQ at http://civicrm.org/licensing |
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+--------------------------------------------------------------------+
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*/
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/**
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* Just another collection of static utils functions.
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*
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* @package CRM
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* @copyright CiviCRM LLC (c) 2004-2017
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*/
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class CRM_Utils_SQL {
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/**
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* Helper function for adding the permissioned subquery from one entity onto another
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*
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* @param string $entity
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* @param string $joinColumn
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* @return array
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*/
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public static function mergeSubquery($entity, $joinColumn = 'id') {
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require_once 'api/v3/utils.php';
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$baoName = _civicrm_api3_get_BAO($entity);
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$bao = new $baoName();
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$clauses = $subclauses = array();
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foreach ((array) $bao->addSelectWhereClause() as $field => $vals) {
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if ($vals && $field == $joinColumn) {
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$clauses = array_merge($clauses, (array) $vals);
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}
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elseif ($vals) {
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$subclauses[] = "$field " . implode(" AND $field ", (array) $vals);
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}
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}
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if ($subclauses) {
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$clauses[] = "IN (SELECT `$joinColumn` FROM `" . $bao->tableName() . "` WHERE " . implode(' AND ', $subclauses) . ")";
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}
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return $clauses;
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}
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/**
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* Get current sqlModes of the session
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* @return array
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*/
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public static function getSqlModes() {
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$sqlModes = explode(',', CRM_Core_DAO::singleValueQuery('SELECT @@sql_mode'));
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return $sqlModes;
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}
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/**
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* Checks if this system enforce the MYSQL mode ONLY_FULL_GROUP_BY.
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* This function should be named supportsAnyValueAndEnforcesFullGroupBY(),
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* but should be deprecated instead.
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*
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* @return mixed
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* @deprecated
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*/
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public static function supportsFullGroupBy() {
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// CRM-21455 MariaDB 10.2 does not support ANY_VALUE
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$version = CRM_Core_DAO::singleValueQuery('SELECT VERSION()');
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if (stripos($version, 'mariadb') !== FALSE) {
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return FALSE;
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}
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return version_compare($version, '5.7', '>=');
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}
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/**
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* Disable ONLY_FULL_GROUP_BY for MySQL versions lower then 5.7
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*
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* @return bool
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*/
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public static function disableFullGroupByMode() {
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$sqlModes = self::getSqlModes();
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// Disable only_full_group_by mode for lower sql versions.
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if (!self::supportsFullGroupBy() || (!empty($sqlModes) && !in_array('ONLY_FULL_GROUP_BY', $sqlModes))) {
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if ($key = array_search('ONLY_FULL_GROUP_BY', $sqlModes)) {
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unset($sqlModes[$key]);
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CRM_Core_DAO::executeQuery("SET SESSION sql_mode = '" . implode(',', $sqlModes) . "'");
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}
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return TRUE;
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}
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return FALSE;
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}
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/**
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* CHeck if ONLY_FULL_GROUP_BY is in the global sql_modes
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* @return bool
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*/
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public static function isGroupByModeInDefault() {
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if (!self::supportsFullGroupBy()) {
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return FALSE;
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}
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$sqlModes = explode(',', CRM_Core_DAO::singleValueQuery('SELECT @@global.sql_mode'));
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if (!in_array('ONLY_FULL_GROUP_BY', $sqlModes)) {
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return FALSE;
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}
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return TRUE;
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}
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}
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